Method or art of making insulated wire



W. E. COOK.

METHOD OR'ART OF MAKING INSULATED WIRE. APPLICATION FILED APR. 24. 1917.

1,415,152.- Patented May 9, 1922. v

WILLIAM E coon, or NEW YORK, u.

PORATION' OF DlidZiAVTAItE. v

' learner! oR- -r or MAKING Insurer-En i' To allwhomz't Be it known that l, CooK, a subject of the King ,ofwthe United Kingdom of Great Britain andjlrelandpr'esiding at St. George, in the. borough of Richmond, city of New York, county-of Richmond, and State of New York, have new and useful Improvements in-the Method or Art of Making Insulated Wire, of which the following is a specification, referencebeing had therein to the accompanyingdi'awing;, which form apart thereof. 6

" having i might unwind, and the cords, being wound spirally about it at the y invention relates to a method'or art of making insulated wire larly to improvements in producing wire an insulation consisting of an absorbent body saturated or impregnatedwith asphaltum or other composition proofing, and increasing'r'theo the coating material. In a co-pendin applic sistance of rial No. 164,302; havedescr Ed-a method or art which consists i spiganywmp i a,

cotton sliver about a wire coatedjwith a sive, and confining the sliver, in, compressed condition, uponthe wire by wrapping binding threads or cords aboutlthe;compactedsliver. prior to the saturation or -,i1'nprcfg1'1ation of the sliver and the; binding or other composition lIn this method or art, vthe binding threads or. cords are wrapped-about the jsliver" in a spiral, the pitch of which is coincident witlir the sliver is wrapped about While I have found that a wire with an asphaltum that at which the wire.

constructed in this manner ishighly satispossibility that as the result of the exhaust on of the the sliver and the wire, or throughout the sliver, the sliver; binding threads or factory, nevertheless there. is. a

adhesive bond betweenv same pitch, would necessarily unwind with it.

By my present invention,

winding the binding the sliver at a lesser or at which the sliver is wound about the wire, thus having the binding length than the sliver,

simultaneous unwinding and the thread or cord by reason of the fact and preventing the 'y sssreno ggsrmnsnn ASSIGNMENTS, r0 'rnr. m comrm, or uxur ,store-K, 11. 12., A core i fi eii l 'raenr- -relented May 9,1922.

lipnu u i fl e' p i a4, 1917; .Serial'No. 134,308.

" that such binding thread or cord, or portions invented certain I material spirally; about and more particufor water p sliver and said strand are set, and in such showing the manner of applying the cotton sliver and" the material, (step of saturating or impregxnating the covadhesive material indicated at band hasimparted thereto continuous traverse at v a sub 'stantfiallyuniform speed-,ybeing passed over this traverse j icottonqsliverki is spirally.wound about the conductor wire ti, the, edges 'of-succeeding v I avoid a 'pos-; convolutions forming a la'p joint sons to sesibility of this condition arising 'by spirally threads or cords about" lower pitch than'that 1,

material of greater.

of both the sliver thereofwill act upon succeeding convolutionS. .Qf the sliver. i

Jlhe invention consists primarily in the method or art of making insulated wire consisting in winding '1 cotton sliver spirally about a conductor wire, with the edges overlapping, compacting said sliver upon the wire, windinga strand of flexible, absorbent cessive",conVO111ti6ns thereof within said sliver [while it is :comp'acted, said strand being wound a ata'difierent pitch" than "that at which said sliver is. wound, and thereafter saturating oivim regnatin'g said. sliver, and

said "strand" wit a viscous. composition whereby the insulating property is increased, the completed wir'e'is waterproofed, and said other novel steps'and practices as are hereinafter set forth and described and more particularly pointed out in'theclaims hereto ap endeda j I c efe'rr ng to'the draw Fi 1 is aside elevation of a machine binding to a. conductor and Fig. 2 ,illustr tesu an apparatus used in the ering for the wire withf asp viscous composition. 5 q r t Like'letters refer to like parts in both of said views: [In thepractice of the method or art of my invention, a continuous strand of acon-' ductor wire ,a' is passed through a bath of altum or other the rollersc' to a rew1ndingreel (not shown). "a continuous strip ofcure' continuity of this-cover and substan-, tially the? same thickness thereof throughout. This. liver is applied by means of a-rotating platform 0 ada ted to carry a container for; the sliver, t through-this platform axially thereof, After the application of the wire with the sliver thereon passes through and embedding 'suef 1 e wire a passing vertically sliver to the wire, the

a compressing horn 9 having rotary movement with the platform e. Thereafter the horn 71.

wire and the partially compacted covering-j therefor passes from the born 9 to asecond [which still further: compacts said sliver.

Immedlately after leaving' 'the horn g-thebinding strand or strands of cotton thread or cord, are spirally wound about the the number of convolutions of said binding strand o r strands per foot being greater than the number of convolutions ofthe sliver for rotated; Carried'by theirame i is a plurality of spools containinga flexiblestrand of absorbent material such as cotton thread or cord j which is suitablyguided and tensioned to cause it to tightly embrace the :ofsa'id binding strands are used,

cotton slivergarid be firmly imbedded therein.

of the cotton sliver,

this covering, material, is secured-Jan by higher. --speed-,' than the number of convolutio'ns threador cord, per foot, is

rotating the 'frame -z'= at the platform 6,

greater'thanthose of the sliver and the pitch of these threads or; cords is less than thatat which thesliver is'applied to the .wi're.

Preferably a plurality of independent to permit the use of a fairlywide sliver confined at a number of different points by these} threads or cords The variance in he'number' of convolutions and of the resulting pitch of thesaid threads or cords and of the sliver, causes theformer to intercept the line' of the lap joint of succeeding convolutlons of the. sliver, thus tending to minimize a tendency towardthe unwinding of the sliver, either. while the wire is in process orafter ,itvhas been completedv and is in use.

manner above described by the thread or cord j, the,wire with'its covering iscpassed through'a tank kcontaining a bath of viscous insulating, adhesive and waterproof material, such as the asphaltum composition ordinarilyu sed in makingvinsu lated wire. Thef wire after thes'setting of this' composition fz-is waxed and, passed through polishing and; finishing" irons' giving the desired final'finishgthsreto. v

7 By reason'fof-the'.application of adhesive to the wire {before Wrapping the sliver spirally thereupon, this sliver [will be firmly bonded to 'thejfwire' so as to resist dis'p'lac'ement bythe compressing .or compacting horns, even though the se, horii' do not have rotary movement. p I I t e. cotton i r s 1,11 the 'asphaltuin sliver,

I tially, simultaneous or set, and at the thdthread or cord the finished product, the binding threads or cords will not be perceptible as the cotton sliver will ordinarily lap thereover in amanner to completely conceal same.

Preferably, to permlt the operation of' .the wrapping machlneused, at high speed threads or cords applied to the exterior of the sliver inv holding the sliver in its compacted-condition uponthe' wire. y

In this manner, 'I am enabled by afsubstanr I or continuous operation, to apply both the'cotton sliver and the bind-i ing thread or cord to the wire, thereby gain;

iiig the'advantage over the present methods of avoiding t e necessity for passing the wires successively through a machine for wrapping this sliver about the wire, and a machine for applying a cover thereto.

Theessential characteristic of the method orart of my present invention is the application of the binding threads or cords at a lesser or lower pitch than that at which the sliver is applied to the wire,'thus avoiding he possibility of the thread or cord being unwound simultaneously w ith the sliver b reason of'the fact that the binding thread or cords. intercept the lap of succeeding convolutions of the sliver- Having described the invention, what I claim as new and desire to have protected by Letters Patent is z--.- 1 a 1. The herein described method or art of ma ing insulated wire consisting in winding 'a cotton sliver spirally about av conductor wire' with the edges thereof overlapping, compacting said sliver upon the wire, ing a strand .of flexible, absorbentmaterial spirally about and embedding successive convolutions thereof within said sliver while it is compacted, said strand being wound at a different pitch from that at which said sliver is wound, with succeeding convolu-' I convolutions-of said sliver, and ductswill' the lap be formed between succeeding convolutions,

of said strands to facilitate the penetration of a viscous composition; throughout the en tire body of said sliver, and thereafter saturating or impregnating said sliver and said strand with a viscous composition whereby the insulating property is increased, the completed wire is waterproofed, and the fibers of said sliver and said strands are bonded together. q

2. The herein; described method or art of making insulated wire consisting in winding a cotton sliver spirally compacting said sliver upon-the wire, WlItd: ing a strand of flexible, absorbent mater al spirally about and embedding successive convolutions spaced apart, whereby said strand will cross between succeeding convolutlons of said sliver, and ducts will be formed between succeeding convolutions of said strands to I facilitate the penetration of a viscous com-- ing a plurality sorbent material position throughout the entire body of said sliver, and thereafter saturating or impreg-, nating said ,sliver and said strand with a viscous composition whereby the insulating property is increased, the completed wire is waterproofed, and the fibers of said sliver and said strands are bonded together.

3. The herein described method or art of making insulated wire a cotton sliver spirally about a conductor wire with the edges thereof overlapping, compacting said sllver uponthe wire, win of strands of flexible, abspirally about and embed-.

;ding successive convolutions thereof within from that at which said sliver is wound, with property 6 0 said sliver while it is compacted, said strands;

being laid; in parallel planes and being wound 'aboutsaid sliver at a different p tch succeeding convolutions thereof. spaced apart, whereby said strands will 'cross' the lap betweensucceeding convolutions of said sliver, and ducts will be formed between succeeding convolutions of said strands to facilitate the penetration of a viscous composition throughout the entire body of said sliver, and thereafter saturating orimpre-gnating said viscous composition whereby the insulating ismcreased, the completed wire is waterproofed, and the fibers of said sliver and said strands are bonded together. I 4. Theh'erein described method or art of making insulated wire consisting in winding. a cotton sliver spirally about a conductor wire with the edges thereof overlapping,

-- about a conductor. 7 wire with the edges" thereof overlapp ng,

consisting in winding ,whi e it is beingiwoundto imbed it in the sliver and said strands withla and ducts will be formed between succeeding convolutions of said strands to facilitate the penetration of' a viscous composition throughout the entire body of said sliver, and thereafter. saturating or impregnating said sliver and said strandswith a" viscous composition whereby the insulating property is increased,l' the completed wire is -waterproofed, and the fibers of said sliver and said strandsai'e bonded together.

5. The herein described method or art of making insulated wire consisting in winding a cotton sliver spirally about a conductor wire with the edges thereof overlapping, compacting said sliver upon the wire, winding a strand of flexible, absorbent material spirally about said sliver while it is compacted, said strand being wound at a different pitch from that at which said sliver is wound, with succeeding convolutions thercof 'spaced apart, whereby said strand will {cross the lap between succeeding convolutions of said sliver, and ducts will be formed between succeeding convolutions of said strands to facilitate. the penetration. of a viscou's'composition throughout the entire I bod -.of said sliver, tensioning said strand sliver, and thereafter saturating or impregv nating said sliver and said strand with a viscous composition whereby the insulating property is increased, the completed wire is waterproofed, and thefibers of said sliver and said strand. are bondedtogether; 6. The herein dsecribedmethod or art of making insulated wire consisting in winding a cotton sliver spirally about a conductor wire with he edges thereof overlapping, compacting said sliver upon the wire, windmg a plurality of strands offiexible, absorbent material spirally about said sliver while it is compacted, said strands being laid in parallel planes and beingwound about said sliverat a lower pitch than that at which said sliver is wound, with succeeding convolutions thereof spaced apart, whereby said strands will cross the lap between succeeding convolutions of said sliver, and ducts will be formed between succeeding convolutions fsaid strands to facilitate the penetration of a viscous com osition throughout the entire body of sai sliver, tensioning said strands while they are being wound to imbed them in the sliver, and

thereafter saturating or impregnating said signature in the presence of two subscribing slive and said strands with a viscous comwitnesses, this 9th day of April, 1917. 1 position whereby the insulating property is WILLIAM E COOK increased, the completed wire is water- 5 proofed, and the fibers -of said sliver and W1tnesses: v said strands are bonded together. i BERTHA MUELLER,

In witness whereof, I here unto afiix my CLARICE FRANCE. 1' 

